Detailed entry information

Subunit of non-clathrin- and clathrin-associated adaptor protein complex 3, AP-3 that plays a role in protein sorting in the late-Golgi/trans-Golgi network, TGN and/or endosomes. The AP complexes mediate both the recruitment of clathrin to membranes and the recognition of sorting signals within the cytosolic tails of transmembrane cargo molecules. AP-3 appears to be involved in the sorting of a subset of transmembrane proteins targeted to lysosomes and lysosome-related organelles. In concert with the BLOC-1 complex, AP-3 is required to target cargos into vesicles assembled at cell bodies for delivery into neurites and nerve terminals.